Hello,
this patch series bases on the five patches I send on Feb 18 (starting
with Message-Id: 20180218210246.25550-1-u.kleine-koenig@xxxxxxxxxxxxxx).
The goal was to fix two problems with the rs485 implementation:
a) endless triggering of the TC irq might prevent sending chars
b) reading from the RX fifo while RX is off results in an oops
a) is fixed in patch 8 of this series, b) is fixed in patch 7 together
with patch "serial: imx: Only handle irqs that are actually enabled"
from the previous series. The last patch prevents disabling the receive
path when there is nothing to send.
The other patches are cleanups and optimisations.
Best regards
Uwe
Uwe Kleine-König (9):
serial: imx: Rename register fields to match newer reference manuals
serial: imx: document functions that are called with port.lock taken
serial: imx: add wrappers for writel and readl
serial: imx: implement shadow registers for UCRx and UFCR
serial: imx: simplify some conditions related to dma
serial: imx: simplify check that prevents starting PIO when DMA is in
use
serial: imx: ensure that RX irqs are off if RX is off
serial: imx: Fix handling of TC irq in combination with DMA
serial: imx: don't prepare to send if no data is available
drivers/tty/serial/imx.c | 628 ++++++++++++++++++++++++++++-------------------
1 file changed, 376 insertions(+), 252 deletions(-)
--
2.16.1
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